This flow meter is a factory assembled item and may take up to 3 - 5 days to ship out from Blue White Industries.The F-42050LN Blue White Flow Meter is made from tough machined acrylic meter body, highly polished to a clear finish. Direct reading permanent scale. White back reflector for easy reading. Sturdy adapters with high grade VitonÃƒâ€ o-ring seals. Standard models #316 stainless steel float guide rods. (Optional K-series hastelloy C-276). Acceptable in direct sunlight applications. Available OEM options: Private labeling, custom calibrations, custom materials.